Gyratory sifter.



No. 796,478. PATENTBD AUG. 8, 1905. J. WARRINGTGN. GYRATORY SIFTER.

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PATENTED AUG. 8, 1905.

J. WARRINGTON.

GYRATORY SIFTER.

APPLICATION FILED APILII, 1904.

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' J. WARRINGTON.

APPLICATION FILED APR. 11. 1904.

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UNITED STATES PATENT OFFIOE.

JESSE WARRINGTON, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO NORDYKE 85 MARMON COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

GYRATQRY SIFTER.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Appiiemon sied Aprii11, 1904. serial No. 202,519.

To all whom, t may concern:

Be it known that I, JESSE WARRINGTON, a citizen of the United States, residing at Indianapolis, in the county of Marion and State ofIndiana, have invented certain new and useful Improvements in Gyratory Sifters, of which the following is a specification.

My invention relates to that class of apparatus used in flouring-mills, &c., for sifting and separating mill products which have a gyrating motion in use and are commonly called "gyratory sifters; and it consists in an improved means of supporting and driving structures embodying such apparatus.

Referring to the accompanying drawings, which are made apart hereof, and on which similarreference characters indicate similar parts, Figure 1 is a top or plan View of a sifter of the character in question mounted and driven by means embodying my present invention; Fig. 2, a front elevation thereof; Fig. 3, a plan view of the means by which the sifter-frame is connected to the fioor or base as seen when looking downwardly from the dotted line 3 3 in Fig. 2; Fig. 4, a central vertical sectional View, on an enlarged scale, through the driving means; Fig. 5, a detail sectional view, on an enlarged scale, through the Hoor connections as seen when lookingin the direction indicated by theI arrows from the dotted line 5 5 in Fig. 3, (but with the middle portion of the connecting rod or link broken away to make room,) the section-point being also indicated by the dotted line 5 5 iny Fig. 6; Fig. 6, an elevation as seen when looking in the direction indicated by the arrows from the dotted lines 6 6 in Figs. 2 and 5; and Fig. 7, a view showing one of the main sifter-structure supports and fragments of adjacent parts on an enlarged scale, being practically similar to a portion of Fig. 2, eX-

f cept that the parts at the bearing or connecting points are shown partially in section.

The main structure (or sifter proper) is supported from an adjacent supporting structure, such as the floor of building, by means of standards 21, which-are mounted, by means of suitable ball-and-socket'bearings 21 and 22, upon the said supporting structure or floor at the lower end and extend up, and by means of other ball-and-socket bearings 23 24 engage with brackets or arms 25, secured to the main frame 26 of the sifter structure. These standards are adjustable longitudinally, the means of adjustment which I prefer being illustrated in Fig. 7, where the member 23 ofthe ball-and-socket joint is prolonged into a sleeve into which the main member 20 enters. These parts being screw-threaded at the point of connection enable the total length to be easily varied by turning one of said parts in relation to the other. When the desired adjustment has been made, the parts may be firmly locked in relation to each other and any disturbance of said adjustment thus prevented by means of suitable clamping means, as the bolts 27 and nuts 28. The machine may thus be both adjusted to a level position and so that it s hall bear uniformly upon its several supports.

The machine is shown as driven by a central crank 3l through a pulley 32, by means of a belt 33,from any suitable source of power, (not shown,) the crank-shaft being mounted in a pillar 30, arranged centrally of the machine.

The standards 2O being loosely mounted at both ends, and ltherefore simply serving to suspend the structure, other means are of course required to hold the structure to position and into the proper relation to the driving means. I have therefore provided a rockshaft 41, which is mounted in bearings 42, securely affixed to the iioor or base upon which the machine is mounted, which shaft has two rigid upwardly-extending arms 43, one at each end, and these arms are connected, by means of ball-and-socket joints, (composed of the members 44 and 45,) with horizontal rods or links 46, which extend to and are connected A with brackets 51 on the frame 56 by means of ball-and-socket connections, consisting of the members 52 and 53. These connections permit of the gyrating motion imparted Vto the sifter structure by the driving-crank and at the same time hold said structure to the proper relation to said crank and to its predetermined general position and correct any tendency to tip or sway out of said position or to depart from the regular path of its movement which might otherwise result from the loose mounting of said structure on its supports.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a gyrating structure, and means for gyrating it, of supports mounted at one end in bearings at the floor or base and at the other end in bearings secured to said sitter structure, tor supporting the same, a rock-shaft also mounted in bearings at the floor or base and provided with arms, and links connecting said arms to the sifter structu re.

2. The combination, with a sitter structure, of supports whereby said structure is suspended, and guiding connections consisting of a rock-shaft mounted in bearings carried by an adjacent supporting structure, arms on said shaft, connecting-rods running to said sifter structure, and ball-and-socket joints at both ends of said rods whereby the connections are made and whereby a universal but limited movement is permitted.

3. The combination of a sitter structure embodying a main frame having sieve-eon taining portions on both sides of its central portion, a pillar extending up into said central port-ion between the sieve-carrying portions to a point midway thereof, a crankshaft mounted in said pillar, a central conneetion between said crank-shaft and the main frame of the sitter structure, supports for said structure alongside the same having universal joints whereby a gyratory movement is permitted, and a rock-shaft and links forming connections to an adjacent stationary structure from said sifter structure whereby the latter is held from other than its gyratory' movement, all substantially as shown and described.

4. rlhe combination of a sifter structure, supports therefor resting in suitable bearings carried by the floor and also connected to said structure by similar bearings, a rook-shaft mounted in bearings carried by the floor and having arms extending toward the sifter structure, bearings on the sitter structure a suitable distance from said arms, and links running from said arms to said bearings` all said bearing connections except the bearings for the rock-shaft being formed to permit a universal movement.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 7th day of April, A. D. 1904.

JESSE WARRINGTON. [L s] Witnesses:

CHESTER BRADFORD, J AMEs A. 4WALSH. 

